diff options
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/acpi_video.c | 37 | ||||
| -rw-r--r-- | drivers/acpi/acpica/exconfig.c | 18 | ||||
| -rw-r--r-- | drivers/acpi/acpica/tbxfload.c | 10 | ||||
| -rw-r--r-- | drivers/acpi/blacklist.c | 4 |
4 files changed, 52 insertions, 17 deletions
diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c index 9489ffc06411..4f325e47519f 100644 --- a/drivers/acpi/acpi_video.c +++ b/drivers/acpi/acpi_video.c @@ -60,6 +60,12 @@ module_param(report_key_events, int, 0644); MODULE_PARM_DESC(report_key_events, "0: none, 1: output changes, 2: brightness changes, 3: all"); +static int hw_changes_brightness = -1; +module_param(hw_changes_brightness, int, 0644); +MODULE_PARM_DESC(hw_changes_brightness, + "Set this to 1 on buggy hw which changes the brightness itself when " + "a hotkey is pressed: -1: auto, 0: normal 1: hw-changes-brightness"); + /* * Whether the struct acpi_video_device_attrib::device_id_scheme bit should be * assumed even if not actually set. @@ -405,6 +411,14 @@ static int video_set_report_key_events(const struct dmi_system_id *id) return 0; } +static int video_hw_changes_brightness( + const struct dmi_system_id *d) +{ + if (hw_changes_brightness == -1) + hw_changes_brightness = 1; + return 0; +} + static const struct dmi_system_id video_dmi_table[] = { /* * Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121 @@ -529,6 +543,21 @@ static const struct dmi_system_id video_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "Vostro V131"), }, }, + /* + * Some machines change the brightness themselves when a brightness + * hotkey gets pressed, despite us telling them not to. In this case + * acpi_video_device_notify() should only call backlight_force_update( + * BACKLIGHT_UPDATE_HOTKEY) and not do anything else. + */ + { + /* https://bugzilla.kernel.org/show_bug.cgi?id=204077 */ + .callback = video_hw_changes_brightness, + .ident = "Packard Bell EasyNote MZ35", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Packard Bell"), + DMI_MATCH(DMI_PRODUCT_NAME, "EasyNote MZ35"), + }, + }, {} }; @@ -1612,6 +1641,14 @@ static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data) bus = video_device->video; input = bus->input; + if (hw_changes_brightness > 0) { + if (video_device->backlight) + backlight_force_update(video_device->backlight, + BACKLIGHT_UPDATE_HOTKEY); + acpi_notifier_call_chain(device, event, 0); + return; + } + switch (event) { case ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS: /* Cycle brightness */ brightness_switch_event(video_device, event); diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c index 587aeeeb5070..46a8baf28bd0 100644 --- a/drivers/acpi/acpica/exconfig.c +++ b/drivers/acpi/acpica/exconfig.c @@ -174,12 +174,11 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state, return_ACPI_STATUS(status); } - /* Complete the initialization/resolution of package objects */ + /* Complete the initialization/resolution of new objects */ - status = acpi_ns_walk_namespace(ACPI_TYPE_PACKAGE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, 0, - acpi_ns_init_one_package, NULL, NULL, - NULL); + acpi_ex_exit_interpreter(); + acpi_ns_initialize_objects(); + acpi_ex_enter_interpreter(); /* Parameter Data (optional) */ @@ -437,12 +436,11 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, return_ACPI_STATUS(status); } - /* Complete the initialization/resolution of package objects */ + /* Complete the initialization/resolution of new objects */ - status = acpi_ns_walk_namespace(ACPI_TYPE_PACKAGE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, 0, - acpi_ns_init_one_package, NULL, NULL, - NULL); + acpi_ex_exit_interpreter(); + acpi_ns_initialize_objects(); + acpi_ex_enter_interpreter(); /* Store the ddb_handle into the Target operand */ diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c index ef8f8a9f3c9c..86f1693f6d29 100644 --- a/drivers/acpi/acpica/tbxfload.c +++ b/drivers/acpi/acpica/tbxfload.c @@ -297,15 +297,11 @@ acpi_status acpi_load_table(struct acpi_table_header *table) status = acpi_tb_install_and_load_table(ACPI_PTR_TO_PHYSADDR(table), ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL, FALSE, &table_index); - if (ACPI_SUCCESS(status)) { - /* Complete the initialization/resolution of package objects */ - status = acpi_ns_walk_namespace(ACPI_TYPE_PACKAGE, - ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, 0, - acpi_ns_init_one_package, - NULL, NULL, NULL); + /* Complete the initialization/resolution of new objects */ + + acpi_ns_initialize_objects(); } return_ACPI_STATUS(status); diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c index ad2c565f5cbe..a86a770c9b79 100644 --- a/drivers/acpi/blacklist.c +++ b/drivers/acpi/blacklist.c @@ -17,7 +17,9 @@ #include "internal.h" +#ifdef CONFIG_DMI static const struct dmi_system_id acpi_rev_dmi_table[] __initconst; +#endif /* * POLICY: If *anything* doesn't work, put it on the blacklist. @@ -61,7 +63,9 @@ int __init acpi_blacklisted(void) } (void)early_acpi_osi_init(); +#ifdef CONFIG_DMI dmi_check_system(acpi_rev_dmi_table); +#endif return blacklisted; } |